Class that contains functions needed for feathering. More...

#include <Feather.h>

Public Member Functions
	Feather ()
	default constructor
	Feather (const ImageInterface< Float > &SDImage, const ImageInterface< Float > &INTImage, Float sdScale=1.0)
	Constructor.
virtual	~Feather ()
	Destructor.
void	setSDScale (Float sdscale=1.0)
	set the SDimage and Int images
void	setSDImage (const ImageInterface< Float > &SDImage)
void	setINTImage (const ImageInterface< Float > &IntImage)
Bool	setEffectiveDishDiam (const Float xdiam, const Float ydiam=-1.0)
	set and get effective dish diameter to be used in feathering function setEffectiveDishDiam will return False if you are trying to assign a finer resolution than what the original data came with
void	getEffectiveDishDiam (Float &xdiam, Float &ydiam)
void	getFTCutSDImage (Vector< Float > &ux, Vector< Float > &xamp, Vector< Float > &uy, Vector< Float > &yamp)
	Get the 1-D slices of amplitude along the x and y axis of the FFT of images Note the SD image is already feathered by its beam..you cannot get unfeathered SD data as it implies deconvolution.
void	getFTCutIntImage (Vector< Float > &ux, Vector< Float > &xamp, Vector< Float > &uy, Vector< Float > &yamp)
void	getFeatherSD (Vector< Float > &ux, Vector< Float > &xamp, Vector< Float > &uy, Vector< Float > &yamp)
	Get the 1-D slices of the feathering function that will be applied on SD and INTerf data.
void	getFeatherINT (Vector< Float > &ux, Vector< Float > &xamp, Vector< Float > &uy, Vector< Float > &yamp)
void	getFeatheredCutSD (Vector< Float > &ux, Vector< Float > &xamp, Vector< Float > &uy, Vector< Float > &yamp)
	Get 1-D slices of the feathered data ...
void	getFeatheredCutINT (Vector< Float > &ux, Vector< Float > &xamp, Vector< Float > &uy, Vector< Float > &yamp)
Bool	saveFeatheredImage (const String &imagename)
	write the feathered image to disk
Static Public Member Functions
static void	feather (const String &image, const ImageInterface< Float > &high, const ImageInterface< Float > &low, const Float &sdScale=1.0, const String &lowPSF="", const Bool useDefault=True, const String &vpTable="", Float effSDDiam=-1.0, const Bool lowpassfiltersd=False)
static Double	worldFreq (const CoordinateSystem &cs, Int spectralpix=0)
Private Member Functions
void	fillXVectors (Vector< Float > &ux, Vector< Float > &uy) const
void	getCutXY (Vector< Float > &ux, Vector< Float > &xamp, Vector< Float > &uy, Vector< Float > &yamp, ImageInterface< Complex > &ftimage)
void	calcCWeightImage ()
void	applyFeather ()
Static Private Member Functions
static void	applyDishDiam (ImageInterface< Complex > &image, GaussianBeam &beam, Float effDiam, ImageInterface< Float > &newbeam, Vector< Quantity > &extraconv)
static void	getLowBeam (const ImageInterface< Float > &low0, const String &lowPSF, const Bool useDefaultPB, const String &vpTableStr, GaussianBeam &lBeam)
	calculate the complex weight image to apply on the interf image
Private Attributes
CountedPtr< ImageInterface < Float > >	lowIm_p
CountedPtr< ImageInterface < Float > >	lowImOrig_p
CountedPtr< ImageInterface < Float > >	highIm_p
CountedPtr< ImageInterface < Complex > >	cwImage_p
CountedPtr< ImageInterface < Complex > >	cwHighIm_p
GaussianBeam	hBeam_p
GaussianBeam	lBeam_p
GaussianBeam	lBeamOrig_p
Float	dishDiam_p
Bool	cweightCalced_p
Bool	cweightApplied_p
Float	sdScale_p
CoordinateSystem	csysHigh_p

Detailed Description

Class that contains functions needed for feathering.

Definition at line 43 of file Feather.h.

Constructor & Destructor Documentation

casa::Feather::Feather ( )

default constructor

casa::Feather::Feather	(	const ImageInterface< Float > &	SDImage,
		const ImageInterface< Float > &	INTImage,
		Float	sdScale = `1.0`
	)

Constructor.

virtual casa::Feather::~Feather ( ) [virtual]

Destructor.

Member Function Documentation

static void casa::Feather::applyDishDiam	(	ImageInterface< Complex > &	image,
		GaussianBeam &	beam,
		Float	effDiam,
		ImageInterface< Float > &	newbeam,
		Vector< Quantity > &	extraconv
	)		`[static, private]`

void casa::Feather::applyFeather ( ) [private]

void casa::Feather::calcCWeightImage ( ) [private]

static void casa::Feather::feather	(	const String &	image,
		const ImageInterface< Float > &	high,
		const ImageInterface< Float > &	low,
		const Float &	sdScale = `1.0`,
		const String &	lowPSF = `""`,
		const Bool	useDefault = `True`,
		const String &	vpTable = `""`,
		Float	effSDDiam = `-1.0`,
		const Bool	lowpassfiltersd = `False`
	)		`[static]`

void casa::Feather::fillXVectors	(	Vector< Float > &	ux,
		Vector< Float > &	uy
	)		const `[private]`

void casa::Feather::getCutXY	(	Vector< Float > &	ux,
		Vector< Float > &	xamp,
		Vector< Float > &	uy,
		Vector< Float > &	yamp,
		ImageInterface< Complex > &	ftimage
	)		`[private]`

void casa::Feather::getEffectiveDishDiam	(	Float &	xdiam,
		Float &	ydiam
	)

void casa::Feather::getFeatheredCutINT	(	Vector< Float > &	ux,
		Vector< Float > &	xamp,
		Vector< Float > &	uy,
		Vector< Float > &	yamp
	)

void casa::Feather::getFeatheredCutSD	(	Vector< Float > &	ux,
		Vector< Float > &	xamp,
		Vector< Float > &	uy,
		Vector< Float > &	yamp
	)

Get 1-D slices of the feathered data ...

note for SD this should return the same values as getFTCutSDImage

void casa::Feather::getFeatherINT	(	Vector< Float > &	ux,
		Vector< Float > &	xamp,
		Vector< Float > &	uy,
		Vector< Float > &	yamp
	)

void casa::Feather::getFeatherSD	(	Vector< Float > &	ux,
		Vector< Float > &	xamp,
		Vector< Float > &	uy,
		Vector< Float > &	yamp
	)

Get the 1-D slices of the feathering function that will be applied on SD and INTerf data.

void casa::Feather::getFTCutIntImage	(	Vector< Float > &	ux,
		Vector< Float > &	xamp,
		Vector< Float > &	uy,
		Vector< Float > &	yamp
	)

void casa::Feather::getFTCutSDImage	(	Vector< Float > &	ux,
		Vector< Float > &	xamp,
		Vector< Float > &	uy,
		Vector< Float > &	yamp
	)

Get the 1-D slices of amplitude along the x and y axis of the FFT of images Note the SD image is already feathered by its beam..you cannot get unfeathered SD data as it implies deconvolution.

static void casa::Feather::getLowBeam	(	const ImageInterface< Float > &	low0,
		const String &	lowPSF,
		const Bool	useDefaultPB,
		const String &	vpTableStr,
		GaussianBeam &	lBeam
	)		`[static, private]`

calculate the complex weight image to apply on the interf image

Bool casa::Feather::saveFeatheredImage ( const String & imagename )

write the feathered image to disk

Bool casa::Feather::setEffectiveDishDiam	(	const Float	xdiam,
		const Float	ydiam = `-1.0`
	)

set and get effective dish diameter to be used in feathering function setEffectiveDishDiam will return False if you are trying to assign a finer resolution than what the original data came with

void casa::Feather::setINTImage ( const ImageInterface< Float > & IntImage )